The molded intake piece between the AFM and throttle body on my Cabrio was badly decayed, so I ordered a new one and installed it. After installation, the car ran like it had a massive vacuum leak, so I pulled it back off to investigate. What I found was that there is a second port, identical to the PCV port near the AFM, but next to the throttle body. I'm pretty sure my old intake hose didn't have that port, and if it did it was blocked off. Is something supposed to be there? I can't find a diagram on realoem or the digitized service manual.
-
-
I bought a new intake boot for my M42 from www.bavauto.com and it has two holes on the under side. Mine came with a plug but it was in the AFM side when it should be on the thottle body side. Is that what your talkin about? pictures always help but i dont have a picture of it!
-
Wrong boot.Comment
-
It fits perfectly and the extra hole was easy to plug, so it's not really an issue. The car idles much better now than with the old cracked boot. I just wanted to make sure that I wasn't missing something.Originally posted by DCColegrove View Post
The part number on RealOEM and on the boot are the same. Mine must have just been missing the plug.
Yep, the holes are each in a thick molded boss. Mine didn't have any plugs, so I spent $2.50 on a +2 oversized 1/2" oil pan plug and threaded it into the rubber. Problem solved! :DOriginally posted by EN318isPDX View PostLast edited by Sam Cogley; 06-27-2008, 01:27 PM.Comment
-
Oh...is this on an m42?Comment
-
this is the M42 section forum...Originally posted by DCColegrove View Post
;)
To anyone who owns an M42 if you want your car to run/idle good you need to check/replace all the vacuum hoses all the way from the ICV side of the intake to the front of car side of the intake.
:hitler:
haha that was harder than it should have been to say.Comment
-
Yep. I looked at my old boot, it had a plastic plug inserted into that hole. The plug broke when I tried to pull it out. I guess the oil pan plug stays.Originally posted by DCColegrove View PostComment
-
-
my car has a hose running to both holes. if you look, there is probably a plugged off vacuum port under the intake.
Comment
-
One hole is for idle control, the other for crankcase ventilation.
Comment
Comment